On the rig dock tuning of large sail yachts. (1st July 2019)
- Record Type:
- Journal Article
- Title:
- On the rig dock tuning of large sail yachts. (1st July 2019)
- Main Title:
- On the rig dock tuning of large sail yachts
- Authors:
- Ghelardi, Stefano
Garavaglia, Alessandra
Rizzo, Cesare Mario
Paci, Matteo - Abstract:
- Abstract: Dock tuning is a crucial stage in the rig service life and in the sailing management. Such operation is necessary for safety and structural stability reasons. The applied pretension has the purpose to increase the stiffness of the whole rig, reducing large displacements caused by aerodynamic and inertial loads. Furthermore, since the rig is aimed at supporting sails, its deformation significantly affects aerodynamic performances, so that dock tuning has also a relevant impact on the propulsion, especially in racing. However, the complexity of the problem and the peculiarities of each different system are the causes of the lack of specific dock tuning procedures in rules and guidelines of Classification societies. The present work, developed in collaboration with the Italian shipyard Perini Navi S.p.A., consists in the validation of a dock tuning numerical procedure adopting a Finite Element Method (FEM) applied to a 67 m long mast. A detailed comparison with real-scale experimental results has been carried out, highlighting the importance of a reliable modelling to accurately predict the non-linear behaviour of the structure. Technical guidelines for dock tuning simulation of large rigs are also provided for the first time in open literature, to the best of the authors' knowledge. Highlights: Dock tuning: a crucial stage in the rig service life and in the sailing management for safety and performances reasons. No detailed procedures are specified in technicalAbstract: Dock tuning is a crucial stage in the rig service life and in the sailing management. Such operation is necessary for safety and structural stability reasons. The applied pretension has the purpose to increase the stiffness of the whole rig, reducing large displacements caused by aerodynamic and inertial loads. Furthermore, since the rig is aimed at supporting sails, its deformation significantly affects aerodynamic performances, so that dock tuning has also a relevant impact on the propulsion, especially in racing. However, the complexity of the problem and the peculiarities of each different system are the causes of the lack of specific dock tuning procedures in rules and guidelines of Classification societies. The present work, developed in collaboration with the Italian shipyard Perini Navi S.p.A., consists in the validation of a dock tuning numerical procedure adopting a Finite Element Method (FEM) applied to a 67 m long mast. A detailed comparison with real-scale experimental results has been carried out, highlighting the importance of a reliable modelling to accurately predict the non-linear behaviour of the structure. Technical guidelines for dock tuning simulation of large rigs are also provided for the first time in open literature, to the best of the authors' knowledge. Highlights: Dock tuning: a crucial stage in the rig service life and in the sailing management for safety and performances reasons. No detailed procedures are specified in technical guidelines of Classification societies. A common experimental dock tuning procedure on a large sail yacht rig is reported. Numerical procedures validated via FEA, highlighting the importance of modelling internal reinforcements and filler. Technical guidelines for rig dock tuning simulations are provided. … (more)
- Is Part Of:
- Ocean engineering. Volume 183(2019)
- Journal:
- Ocean engineering
- Issue:
- Volume 183(2019)
- Issue Display:
- Volume 183, Issue 2019 (2019)
- Year:
- 2019
- Volume:
- 183
- Issue:
- 2019
- Issue Sort Value:
- 2019-0183-2019-0000
- Page Start:
- 384
- Page End:
- 397
- Publication Date:
- 2019-07-01
- Subjects:
- Dock tuning -- Rig design -- Sail yachts -- Non-linear FEA -- Experimental data -- Classification societies
Ocean engineering -- Periodicals
Ocean engineering
Periodicals
620.4162 - Journal URLs:
- http://www.sciencedirect.com/science/journal/00298018 ↗
http://www.elsevier.com/journals ↗ - DOI:
- 10.1016/j.oceaneng.2019.04.080 ↗
- Languages:
- English
- ISSNs:
- 0029-8018
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 6231.280000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 11151.xml